123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2012, STMicroelectronics.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \addtogroup stm32nucleo-spirit1-humidity-sensor
|
|
* @{
|
|
*
|
|
* \file
|
|
* Driver for the stm32nucleo-spirit1 Humidity sensor (on expansion board)
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
#ifdef X_NUCLEO_IKS01A1
|
|
/*---------------------------------------------------------------------------*/
|
|
#include "lib/sensors.h"
|
|
#include "humidity-sensor.h"
|
|
#include "st-lib.h"
|
|
/*---------------------------------------------------------------------------*/
|
|
static int _active = 1;
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
init(void)
|
|
{
|
|
/*Temperature and Humity sensors share the same hw*/
|
|
if(!st_lib_bsp_hum_temp_is_initialized()) {
|
|
st_lib_bsp_hum_temp_init();
|
|
_active = 1;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
activate(void)
|
|
{
|
|
_active = 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
deactivate(void)
|
|
{
|
|
_active = 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
active(void)
|
|
{
|
|
return _active;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
value(int type)
|
|
{
|
|
uint32_t humidity;
|
|
volatile float humidity_value;
|
|
|
|
st_lib_bsp_hum_temp_get_humidity((float *)&humidity_value);
|
|
|
|
humidity = humidity_value * 10;
|
|
return humidity;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
configure(int type, int value)
|
|
{
|
|
switch(type) {
|
|
case SENSORS_HW_INIT:
|
|
init();
|
|
return 1;
|
|
case SENSORS_ACTIVE:
|
|
if(value) {
|
|
activate();
|
|
} else {
|
|
deactivate();
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
status(int type)
|
|
{
|
|
switch(type) {
|
|
case SENSORS_READY:
|
|
return active();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
SENSORS_SENSOR(humidity_sensor, HUMIDITY_SENSOR, value, configure, status);
|
|
/*---------------------------------------------------------------------------*/
|
|
#endif /*X_NUCLEO_IKS01A1*/
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @} */
|